The number 43429
43429 is a composite number with 4 divisors. Its prime factorisation is 137 × 317. Divisors (4): 1, 137, 317, 43429.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 43429: a semiprime: 137 × 317, the product of two primes.
- 2
43429 is composite. Its prime factorisation is
- 3
The divisors add up to 43884; without 43429 itself that is 455, so 43429 is deficient (455 is less than 43429). Euler's totient φ(43429) = 42976 numbers up to 43429 share no factor with it.
- 4
The digits of 43429 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 163 steps to reach 1.
LaTeX source of the formulas on this page
\[ 43429 = 137 \times 317 \]
43429 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 43884 |
| Euler totient φ(n) | 42976 |
| Square | 1886078041 |
| Cube | 81910483242589 |
| Square root | 208.396257 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 163 |
| Scientific notation | 4.3429 × |
43429 in other forms
| Form | Value |
|---|---|
| In words | forty-three thousand four hundred and twenty-nine |
| Binary (base 2) | 1010100110100101 |
| Octal (base 8) | 124645 |
| Hexadecimal (base 16) | A9A5 |
| Base 3 | 2012120111 |
| As time | 43429 seconds = 12 h 3 min 49 s |
Is 43429 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 43429 a prime number?
No. 43429 = 137 × 317, so it is divisible by 137.
What are the factors of 43429?
1, 137, 317, 43429.
What is 43429 in binary?
1010100110100101 (hexadecimal A9A5, octal 124645).
What is the square root of 43429?
About 208.3963.
Is 43429 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 43429?
43429 is a semiprime: 137 × 317, the product of two primes.